EDITORIAL NOTES. 
This Volume contains Parts LXV., LXVI., LXX., LXXI., and LXXII. 
of the Zoological Series of Reports. 
Part LXV. — The First Part of the Report on the Pteropoda, by 
Dr. Paul Pelseneer, treating of the Gymnosomata, was published in 1887 
in Volume XIX., and forms Part LVIII. of the Zoological Series of Reports. 
This Second Part of the Report, by the same author, deals with the 
Thecosomata, and contains 132 pages of letterpress and 2 plates, in addition 
to woodcuts. 
Part LXVI. — In this Third and concluding Part of the Report on the 
Pteropoda, Dr. Pelseneer treats of the Anatomy of the whole group and 
discusses the relations of the Pteropoda to the other Mollusca. The Part 
consists of 97 pages of letterpress and 5 lithographic plates, in addition to 
other illustrations in the text. 
Part LXX. — The First Part of the Report on the Hydroida collected 
during the Expedition, by Professor S. J. Allman, F.R.S., was published in 
1883 in Volume VII., forming Part XX. of the Zoological Series of Reports ; 
it treated of the Plumularid,® (Plumularinse). 
The present Memoir is the Second and concluding Part of Professor 
Allman’s Report, and treats of the remaining families of the order. 
In consequence of the extent and representative character of the collec- 
tions Professor Allman has been able to give, in addition to the zoological 
